Home / 2,687.39-3,710.27-1,847.78

Finding the Fourth Proportional to 2,687.39, 3,710.27 and 1,847.78

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Solution

The fourth proportional to 2,687.39, 3,710.27 and 1,847.78 is: 2,551.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.39 : 3,710.27 = 1,847.78 : x
  2. Step 2: Convert to fraction form
    2,687.39/3,710.27 = 1,847.78/x
  3. Step 3: Cross multiply
    2,687.39x = 3,710.27 × 1,847.78
  4. Step 4: Simplify right side
    2,687.39x = 6,855,753.46
  5. Step 5: Solve for x
    x = 6,855,753.46/2,687.39
  6. Step 6: Final answer
    x = 2,551.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.